Global Patent Index - EP 2552004 A3

EP 2552004 A3 2014-04-16 - Power supply system with low power standby supply for control unit

Title (en)

Power supply system with low power standby supply for control unit

Title (de)

Netzteil mit Hilfsversorgung des Steuergeräts im Energiesparmodus

Title (fr)

Système d'alimentation électrique avec alimentation auxiliaire de puissance faible pour le contrôleur en mode d'économie d'énergie

Publication

EP 2552004 A3 (EN)

Application

EP 12177782 A

Priority

JP 2011167385 A

Abstract (en)

[origin: EP2552004A2] A power supply system (100) includes: a switching power supply (21, 20), which rectifies and smoothes an AC voltage of an AC power supply to generate a first DC voltage in a normal mode; a control unit (51), which controls the switching power supply to switch between the normal mode and a power saving mode; and a low-capacity power supply circuit, which supplies power to the control unit in the power saving mode, and which includes: a first capacitor (C1), which includes a first electrode connected to one end of the AC power supply, and a second electrode; a second capacitor (C2), which includes a first electrode connected to the other end of the AC power supply, and a second electrode; a rectifying circuit (31), which rectify an AC voltage applied to both capacitors; and a smoothing circuit (32), which smoothes the rectified AC voltage to generate a smooth voltage.

IPC 8 full level (invention and additional information)

H02M 7/06 (2006.01); H02J 9/00 (2006.01)

CPC (invention and additional information)

H02M 7/066 (2013.01); H02J 9/005 (2013.01); H02M 3/33523 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0032 (2013.01); Y02B 70/16 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

EP 2552004 A2 20130130; EP 2552004 A3 20140416; CN 102904468 A 20130130; CN 102904468 B 20170620; JP 2013031337 A 20130207; JP 5752513 B2 20150722; US 2013031396 A1 20130131; US 9130450 B2 20150908

INPADOC legal status


2016-08-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20160708

2014-11-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20141016

2014-11-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2014-04-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2014-04-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME

2014-04-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H02M 7/06 20060101AFI20140313BHEP

2014-04-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H02J 9/00 20060101ALI20140313BHEP

2013-01-30 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2013-01-30 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME